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1·Objective: To probe into quick and effective method of sterilization of perineum for prenatal parturient.

目的探讨静脉留置针留置期间消毒方法，及其与静脉炎发生的关系。

2·Conclusions Radical resection of low rectal cancer with elevating perineum method would significantly improve operative field exposure.

目的探讨改善显露低位直肠癌根治切除术中的手术视野的方法。